The "Qi" of 1 is taken from Ding's "Xin" and is homophonic with "Qin". The implication is that fans want the two members to take care of each other and support each other like brothers.
2. Sister Xianglin's "Xiang" is taken from Yan's "Xiang Hao", which implies that the relationship between the two members is as free and noble as an eagle flying in the sky, and expresses fans' wishes for long-term friendship and good development.